Answer in brief
CVE-2026-77128 records a Medium severity (CVSS 6.3) vulnerability in Broken Access Control in extension "Event management and registration" (sf_event_mgt). The current sources do not mark it as known exploited. The current feed maps TYPO3/derhansen/sf_event_mgt (generic), TYPO3/Extension "Event management and registration" (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps TYPO3/derhansen/sf_event_mgt (generic), TYPO3/Extension "Event management and registration" (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| TYPO3/derhansen/sf_event_mgtgeneric | >=9.0.0 <9.0.3 || >=8.0.0 <8.6.2 || >=7.0.0 <7.9.3 || >=6.0.0 <6.7.2 || >=0 <5.9.3 | 9.0.3, 8.6.2, 7.9.3, 6.7.2, 5.9.3 |
| TYPO3/Extension "Event management and registration"generic | >=9.0.0 <9.0.3 || >=8.0.0 <8.6.2 || >=7.0.0 <7.9.3 || >=6.0.0 <6.7.2 || >=0 <5.9.3 | 9.0.3, 8.6.2, 7.9.3, 6.7.2, 5.9.3 |
Published upstream
Aug 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 25, 2026
The extension fails to enforce enable-field restrictions on a repository query parameter. An unauthenticated remote user can pass a demand-override parameter to view hidden or time-restricted events, unless the disableOverrideDemand plugin setting is active. Exploitation of this issue requires only that disableOverrideDemand is not enabled.
Quoted source text, attributed separately from HOL analysis.